Replace boost::optional with std::optional where possible

src/core/hle/service/apt/applet_manager.cpp

@@ -207,7 +207,7 @@ ResultVal<MessageParameter> AppletManager::GlanceParameter(AppletId app_id) {
     // Note: The NS module always clears the DSPSleep and DSPWakeup signals even in GlanceParameter.
     if (next_parameter->signal == SignalType::DspSleep ||
         next_parameter->signal == SignalType::DspWakeup)
-        next_parameter = boost::none;
+        next_parameter = {};
 
     return MakeResult<MessageParameter>(parameter);
 }
@@ -216,7 +216,7 @@ ResultVal<MessageParameter> AppletManager::ReceiveParameter(AppletId app_id) {
     auto result = GlanceParameter(app_id);
     if (result.Succeeded()) {
         // Clear the parameter
-        next_parameter = boost::none;
+        next_parameter = {};
     }
     return result;
 }
@@ -236,7 +236,7 @@ bool AppletManager::CancelParameter(bool check_sender, AppletId sender_appid, bo
     }
 
     if (cancellation_success)
-        next_parameter = boost::none;
+        next_parameter = {};
 
     return cancellation_success;
 }

src/core/hle/service/apt/applet_manager.h

@@ -5,8 +5,8 @@
 #pragma once
 
 #include <array>
+#include <optional>
 #include <vector>
-#include <boost/optional.hpp>
 #include "core/hle/kernel/event.h"
 #include "core/hle/result.h"
 #include "core/hle/service/fs/archive.h"
@@ -143,7 +143,7 @@ public:
 private:
     /// Parameter data to be returned in the next call to Glance/ReceiveParameter.
     /// TODO(Subv): Use std::optional once we migrate to C++17.
-    boost::optional<MessageParameter> next_parameter;
+    std::optional<MessageParameter> next_parameter;
 
     static constexpr std::size_t NumAppletSlot = 4;
 

src/core/hle/service/apt/apt.cpp

@@ -206,7 +206,7 @@ void Module::Interface::GetSharedFont(Kernel::HLERequestContext& ctx) {
     // The shared font has to be relocated to the new address before being passed to the
     // application.
     VAddr target_address =
-        Memory::PhysicalToVirtualAddress(apt->shared_font_mem->linear_heap_phys_address).value();
+        *Memory::PhysicalToVirtualAddress(apt->shared_font_mem->linear_heap_phys_address);
     if (!apt->shared_font_relocated) {
         BCFNT::RelocateSharedFont(apt->shared_font_mem, target_address);
         apt->shared_font_relocated = true;